Optimization for U-Shaped Steel Support in Deep Tunnels under Coupled Static-Dynamic Loading

Figure 7

The deformation of various monitoring points with different factors. (a) Deformation of the 0.8 side stress coefficient; (b) deformation of the 1.0 side stress coefficient; (c) deformation of the 1.2 side stress coefficient; (d) deformation of the 1.5 side stress coefficient; (e) deformation of the 2.0 side stress coefficient. The black curve represents the distance of 0.5 m; the red curve, the distance of 1.0 m; the blue curve, the distance of 1.5 m; the pink curve, the distance of 2.0 m; the green curve, the distance of 2.5 m.

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